code: def test_all_nested_indices(nest):
      indices = ivy.all_nested_indices(nest)
      assert indices[0] == ["a", 0, 0]
      assert indices[1] == ["a", 1, 0]
      assert indices[2] == ["b", "c", 0, 0, 0]
      assert indices[3] == ["b", "c", 0, 1, 0]
      assert indices[4] == ["b", "c", 1, 0, 0]
      assert indices[5] == ["b", "c", 1, 1, 0]
  
imports: import copy
  import warnings
  import pytest
  import numpy
  import ivy
label_desc: Use image node_id 6 for calling a global function with example usage: test_all_nested_indices(nest) without return types